CN106677006A - Expressway tunnel portal road surface deicing device - Google Patents
Expressway tunnel portal road surface deicing device Download PDFInfo
- Publication number
- CN106677006A CN106677006A CN201710067238.XA CN201710067238A CN106677006A CN 106677006 A CN106677006 A CN 106677006A CN 201710067238 A CN201710067238 A CN 201710067238A CN 106677006 A CN106677006 A CN 106677006A
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- China
- Prior art keywords
- road surface
- pillar
- deicing device
- remote sensing
- freeway tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005276 aerator Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 19
- 241000521257 Hydrops Species 0.000 description 15
- 206010030113 Oedema Diseases 0.000 description 15
- 239000013078 crystal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000005413 snowmelt Substances 0.000 description 4
- 241000234271 Galanthus Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 241000283080 Proboscidea <mammal> Species 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/005—Permanently-installed devices for applying gritting or thawing materials, e.g. for spreading grit, for spraying de-icing liquids
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
- E01H5/106—Clearing snow or ice exclusively by means of rays or streams of gas or steam, or by suction with or without melting
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses the technical field of road surface deicing, in particular to an expressway tunnel portal road surface deicing device, which comprises a power supply module, a remote sensing detection device, an active deicing device, an information issuing device and a central processing unit, wherein the remote sensing detection device collects tunnel portal road surface information and sends the information to the central processing unit for analysis and judgment, the opening and closing of the active deicing device are controlled, and the road surface information is displayed through the information issuing device. The expressway tunnel portal road surface deicing device has the advantages of monitoring the situation of the tunnel portal road surface in real time and eliminating the factors that affect the anti-skid performance on the tunnel portal road surface to ensure the safe passage of vehicles.
Description
Technical field
The present invention relates to road surface deicing technical field, more particularly to a kind of freeway tunnel mouth road surface deicing device.
Background technology
With the fast development of highway, the tunnel built on highway is also more and more, but the presence in tunnel
Many potential disasters are faced with, it is exactly a disaster for often resulting in vehicle accident that tunnel face is icy on road.Tunnel is due to certainly
Body structure and vehicular traffic constantly drive the flowing of air, cause the generation of air Temperature Difference inside and outside tunnel, in rainfall snowfall
Afterwards tunnel face road surface easily freezes.And human pilot equation of light inside and outside the moment into tunnel produces black-hole effect compared with conference,
Ambient conditions that cannot be near fast reaction tunnel face and traffic conditions, so as to easily cause vehicle accident, cause to dislike when serious
Property shunts into one another accident, causes traffic paralysis, has a strong impact on the operation of highway.
In the technology of existing sensor icy on road, electricity formula freezing sensor low cost, capacity of resisting disturbance is stronger, but
It is to need to be embedded in road, installs and safeguard cumbersome, while easily being rolled destruction by vehicular traffic.
It is pre- that Chinese Patent Application No. 201520210362.3 discloses a kind of detection icy on road of freeway tunnel entrance
Alarm device, the detection means in the device is laid on the center of sphere of movements for the elephants shape and corner, and the detection means of center is embedded in
The position that road center graticule is located, the detection means in four outsides is respectively apart from 0.5 meter of road edge, and it is right to the arrangement achieves
The laying mode that the timely early warning of situation icy on road of tunnel portal is adopted simultaneously is difficult to be rolled destruction.But for having built
Into freeway tunnel increase the device and need for cutting road surface and carry out the embedded of detection means, while the device can only be real
Now to the early warning and prompting of icing, it is impossible to remove icing actively.
Be mostly in existing clearing ice technology using when intervene by the way of, i.e. road surface is related by snow and ice cover
Staff just carry equipment and carry out deicing and sweep away snow, this mode of deicing afterwards can not eliminate in time icy on road hidden
Suffer from, still there is certain threat to traffic safety.
The content of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of prior art, there is provided a kind of convenient high speed installed
Tunnel portal of highway road surface deicing device, being capable of real-time monitoring tunnel face situation icy on road and the timely road surface of removing on one's own initiative knot
Ice, guarantee driving safety.
In order to realize foregoing invention purpose, the invention provides technical scheme below：
A kind of freeway tunnel mouth road surface deicing device, including power module, telemetry unit, active deicer and in
Central processor, the telemetry unit and active deicer connection central processing unit.
Preferably, the telemetry unit be remote sensing type traffic weather automatic Weather Station, including remote sensing type road surface state sensing
Device and the face temperature sensor of remote sensing type road, can accurately measure the thickness of hydrops, accumulated ice, accumulated snow, cause road to skid in ice crystal
The appearance of ice crystal just can be accurately measured before, it is ensured that the traffic safety of road.
Preferably, the active deicer includes pillar and the heating system on pillar, the heating system
Including air inlet, aerator, heater, gas outlet, the gas outlet is arranged on one side of the pillar near roadside, the air inlet
Mouth is arranged on one side contrary with gas outlet on pillar, and the aerator, heater are arranged on the hollow inside of pillar, Neng Gou
When telemetry unit detects that road surface has hydrops, icing, accumulated snow to cause road surface friction force to reduce, institute is controlled by central processing unit
Heating system unlatching is stated, timely road pavement blowing hot-air is dried or deicing snow removing, ensures that road safety is passed through.
Preferably, the active deicer includes pillar and the Snow Agent dispenser on pillar, the snow melt
Agent dispenser includes nozzle and Snow Agent accommodating chamber, can detect that road surface has ice or snow to cause frictional force in telemetry unit
When affecting traffic safety, the Snow Agent dispenser is controlled by central processing unit and is opened, Snow Agent is sprayed by road pavement timely
The ice and snow on road surface is removed on ground, in order to avoid ice and snow thickeies causes slipperiness on roads, vehicle accident occurs.
Preferably, the Snow Agent is organic Snow Agent, and snow melt effect is good, not corrosion-damaged to environment.
Preferably, also including information delivery apparatus, described information distributing device connection central processing unit, described information is issued
Device is variable information board, can have the information such as ice, snowy, deicing are completed, snow removing is completed to issue out on road surface, for driver
Member knows road ahead situation, judges in time.
Preferably, the power module is device of solar generating, including solar battery group, controller for solar and storage
Battery, the solar battery group connects controller for solar, controller for solar connection accumulator, accumulator connection centre
Reason device, efficiently solves the problems, such as that remote mountain areas highway equipment is powered difficulty using solar powered.
Compared with prior art, beneficial effects of the present invention：
1st, telemetry unit is present invention employs, the thickness of hydrops, icing, accumulated snow can be accurately detected, can be in road
Occur detecting the appearance of ice crystal before skidding, active deicer is opened in time, be not road surface occur to pile up very thick
Ice sheet, affects traffic safety；Simultaneously telemetry unit is adopted, be more convenient to install and safeguard, because telemetry unit is adopted
Be non-intrusion type detection technique, without the need for carrying out grooving to road surface during installation, this comes for the highway for having built up
Say and undoubtedly greatly save installation cost, and telemetry unit easily will not be ground as the sensor of embedded type by vehicular traffic
Crushing is bad, extends the service life of detection means.
2nd, the present invention adopts device of solar generating, is powered for whole device using cleaning resource, solves remotely
The road furniture in area is powered difficult problem, while power using clean energy resource to be also beneficial to alleviate environmental pollution, energy shortage etc.
Problem.
Description of the drawings：
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the workflow diagram of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2.
Labelling in figure：1- solar battery group, 2- remote sensing type traffic weather automatic Weather Stations, 3- air outlets, 4- pillars, 5- is variable
Advices plate, 6- nozzles.
Specific embodiment
With reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
Scope for above-mentioned theme of the invention is only limitted to below example, and all technologies realized based on present invention belong to this
The scope of invention.
Embodiment 1
As shown in figure 1, a kind of freeway tunnel mouth road surface deicing device, including device of solar generating, remote sensing type traffic gas
As automatic Weather Station 2, active deicer and central processing unit, the remote sensing type traffic weather automatic Weather Station 2 and active deicer connect
Connect central processing unit.
The active deicer includes pillar 4 and the heating system on pillar 4, the heating system include into
QI KOU, aerator, heater, gas outlet 3, the gas outlet 3 is arranged on one side of the pillar 4 near roadside, the air inlet
Another side contrary with gas outlet 3 on pillar 4 is arranged on, the aerator, heater are arranged on the hollow inside of pillar, can
When remote sensing type traffic weather automatic Weather Station 2 detects that road surface has water, ice, snow to cause road surface friction force to reduce, by central processing unit
Control the heating system to open, timely road pavement blowing hot-air is dried or deicing snow removing, ensures that road safety is passed through.
Device of solar generating includes solar battery group 1, controller for solar and accumulator, the solar battery group
1 connection controller for solar, controller for solar connection accumulator, accumulator connection central processing unit.Solar battery group 1 is pacified
The top of pillar 4 is mounted in, the pillar 4 is hollow structure, and controller for solar is arranged on the hollow inside of the pillar 4, stores
Battery may be mounted at the inside of pillar 4 and can also be arranged on underground.
In addition, supply unit can also be consistent with the power supply mode that tunnel interior lighting device is adopted, tunnel can be directly connected to
The power supply of road interior lighting device, which decreases the installation cost of this device.
Remote sensing type traffic weather automatic Weather Station 2 includes remote sensing type road surface state sensor and the face temperature sensor of remote sensing type road.
Remote sensing type road surface state sensor adopts spectral measurement principle, the thickness of hydrops, icing, accumulated snow can be accurately measured, in ice crystal
Cause road that the appearance of ice crystal just can be accurately measured before skidding, it is ensured that the traffic safety of road.In combination with remote sensing type road face
Temperature sensor is used, and the factor to causing road surface friction force to reduce judges more accurate.
Refer to be published in《Highway communication science and technology》11 phases in 2010《Road surface slippery situation index is developed and its in traffic circulation pipe
Application in reason》Road surface slippery situation index is divided into into 4 grades in one text, as shown in table 1：
| Road surface slippery situation index | Range of friction coefficients | Pavement skid resistance condition | Correspondence pavement behavior |
| 1 grade | F≥015 | Normally | Room temperature, drying |
| 2 grades | 0135≤F<015 | It is slightly worse | Hydrops |
| 3 grades | 012≤F<0135 | It is poor | Loose snow, mottled ice, frost |
| 4 grades | F<012 | It is very poor | Accumulated snow or ice sheet |
Table 1
As shown in Table 1, when there is certain hydrops on road surface, the anti-slide performance on road surface declines, and has influence on normal vehicle operation, but right
Pavement skid resistance condition affect it is maximum belong to accumulated snow and icing, therefore, once there is accumulated snow or icing in freeway tunnel mouth,
Easily occur skidding for the vehicle run at high speed, cause vehicle accident.
Fig. 2 shows the workflow diagram of the preferred embodiment of the present invention.
With reference to Fig. 2, the workflow of the preferred embodiment of the present invention is as follows：The face temperature sensor when remote sensing type road detects road
When face temperature is not higher than zero degree, while remote sensing type road face situation sensors detect road surface and have the situation of accumulated snow, central processing unit
Control starts heating system, starts aerator, heater, and by the air inspiration hollow leg 4 of air inlet, heated device is heated
Blown out by gas outlet 3 into hot blast, by the Snowremoval on road surface；If remote sensing type road face situation sensors detect road surface ice
During situation, central processing unit control starts heating system, and the icing on road surface is removed；When remote sensing type road face temperature sensor inspection
When measuring pavement temperature higher than zero degree, while remote sensing type road face situation sensors detect road surface and have the situation of hydrops, centre
Reason device control starts heating system, and the hydrops on road surface are removed；Other situations, road surface is dried can be with support vehicles security row
Sail.Meanwhile, release news in variable information board 5 such as " tunnel face there are hydrops, asks slow down ", " there is accumulated snow tunnel face, please keep
The information warnings such as spacing " " there is icing tunnel face, please drive with caution ", advance notice human pilot road ahead information works as road surface
When hydrops, accumulated snow or icing removing are finished, variable information board release news such as " hydrops/accumulated snow/icing is removed " prompting, accuse
Know that human pilot can be with safe passing.
The present invention is capable of the situation on real-time monitoring tunnel face road surface using telemetry unit, can in time find road surface
Ice and snow and hydrops situation, just can actively take measures in icing, accumulated snow or hydrops when just producing, and friction will be reduced on road surface
The factor of index impacts anti-slide performance is eliminated, and is unlikely to make ice and snow or hydrops on road surface further increase to cause vehicle accident.
Embodiment 2
As shown in figure 3, the present embodiment and embodiment 1 differ only in active deicer, the active deicing dress of the present embodiment
The Snow Agent dispenser including pillar 4 and on the pillar 4 is put, the Snow Agent dispenser includes nozzle 6 and snow melt
Agent accommodating chamber, the nozzle 6 is arranged on pillar 4 near the side of road, and it is hollow that the Snow Agent accommodating chamber is arranged on pillar 4
It is internal.Can be when telemetry unit detects that road surface has ice or snow to cause frictional force to reduce affecting traffic safety, by central authorities
Processor controls the Snow Agent dispenser and opens, and by road pavement the ice and snow that Snow Agent removes in time road surface is sprayed, in order to avoid
Ice and snow thickeies causes slipperiness on roads, vehicle accident occurs.
Preferably, the Snow Agent is organic Snow Agent, and snow melt effect is good, not corrosion-damaged to environment.At present, at a high speed
More often chloride salt Snow Agent used in highway, although and this kind of Snow Agent low price, its residue road pavement
There is certain corrosiveness with automobile rubber tire.Organic Snow Agent used in the present embodiment does not corrode work to infrastructure
With, but price is higher, but the present invention is simply in the pavement usage of freeway tunnel mouth, is not that large area is used, so
The use of organic Snow Agent will not cause burden to the maintenance cost of highway.
The present embodiment can not the hydrops of road pavement be purged, as shown in Table 1 road pavement antiskid performance impact is maximum
Factor is accumulated snow and icing, eliminates accumulated snow or the icing on tunnel face road surface, also can to a certain extent ensure that vehicular traffic is pacified
Full traveling, while the power consumption of the present embodiment is relatively low, it is adaptable to which some solar energy resourceses are not that very abundant tunnel face installation makes
With.
Claims (9)
1. a kind of freeway tunnel mouth road surface deicing device, including power module, telemetry unit, active deicer and
Central processing unit, the telemetry unit and active deicer connection central processing unit.
2. freeway tunnel mouth road surface deicing device according to claim 1, it is characterised in that the remote sensing detection dress
It is set to remote sensing type traffic weather automatic Weather Station.
3. freeway tunnel mouth road surface deicing device according to claim 2, it is characterised in that the remote sensing type traffic
Meteorological Automatic Station includes remote sensing type road surface state sensor and the face temperature sensor of remote sensing type road.
4. freeway tunnel mouth road surface deicing device according to claim 1, it is characterised in that the active deicing dress
The heating system including pillar and on pillar is put, the heating system includes air inlet, aerator, heater, outlet
Mouthful, the gas outlet is arranged on one side of the pillar near roadside, and the air inlet is arranged on contrary with gas outlet on pillar
Simultaneously, the aerator, heater are arranged on the hollow inside of pillar.
5. freeway tunnel mouth road surface deicing device according to claim 1, it is characterised in that the active deicing dress
The Snow Agent dispenser including pillar and on pillar is put, the Snow Agent dispenser includes that nozzle and Snow Agent are accommodated
Chamber.
6. freeway tunnel mouth road surface deicing device according to claim 5, it is characterised in that the Snow Agent is to have
Machine Snow Agent.
7. freeway tunnel mouth road surface deicing device according to claim 1, it is characterised in that also issue including information
Device, described information distributing device connection central processing unit.
8. freeway tunnel mouth road surface deicing device according to claim 7, it is characterised in that described information issues dress
It is set to variable information board.
9. freeway tunnel mouth road surface deicing device according to claim 1, it is characterised in that the power module is
Device of solar generating, including solar battery group, controller for solar and accumulator, the solar battery group connects the sun
Energy controller, controller for solar connection accumulator, accumulator connection central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067238.XA CN106677006A (en) | 2017-02-07 | 2017-02-07 | Expressway tunnel portal road surface deicing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067238.XA CN106677006A (en) | 2017-02-07 | 2017-02-07 | Expressway tunnel portal road surface deicing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677006A true CN106677006A (en) | 2017-05-17 |
Family
ID=58859257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067238.XA Withdrawn CN106677006A (en) | 2017-02-07 | 2017-02-07 | Expressway tunnel portal road surface deicing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677006A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700418A (en) * | 2017-11-13 | 2018-02-16 | 南昌大学 | A kind of railway switch idle space defroster |
| CN108733015A (en) * | 2018-05-14 | 2018-11-02 | 山东交通学院 | A kind of automatic active control method of intelligence ice prevention and snow removing control system |
| CN108914869A (en) * | 2018-07-02 | 2018-11-30 | 湖北工业大学 | A kind of deicing or snow melting system and method based on road and bridge underground water |
| CN108978377A (en) * | 2018-07-05 | 2018-12-11 | 潘舒畅 | Anti-fall snow quickly removes rain high speed slope surface |
| CN109024151A (en) * | 2018-07-11 | 2018-12-18 | 安徽省徽腾智能交通科技有限公司 | A kind of Highway Maintenance method |
| CN109859471A (en) * | 2019-02-27 | 2019-06-07 | 长安大学 | A kind of inlet and outlet changeover portion road surface running vehicle safety comprehensive early warning of freeway tunnel and feedback system and method |
| CN110565768A (en) * | 2019-09-03 | 2019-12-13 | 广东潮鑫建设工程有限公司 | Municipal drainage system |
| CN110644416A (en) * | 2019-10-15 | 2020-01-03 | 王光建 | Road cleaning and purifying system |
| CN112411451A (en) * | 2020-10-27 | 2021-02-26 | 长安大学 | Highway pavement accumulated water blowing and draining system and method |
| CN113005848A (en) * | 2021-03-23 | 2021-06-22 | 北京工业大学 | Road zebra crossing line surface anti-icing device utilizing solar energy |
| CN113958364A (en) * | 2021-09-27 | 2022-01-21 | 中铁二十二局集团有限公司 | Tunnel disaster early warning method |
-
2017
- 2017-02-07 CN CN201710067238.XA patent/CN106677006A/en not_active Withdrawn
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700418B (en) * | 2017-11-13 | 2024-03-29 | 南昌大学 | Railway switch harmful space freeze-proof device |
| CN107700418A (en) * | 2017-11-13 | 2018-02-16 | 南昌大学 | A kind of railway switch idle space defroster |
| CN108733015B (en) * | 2018-05-14 | 2020-02-14 | 山东交通学院 | Automatic activation control method of intelligent anti-icing snow removal control system |
| CN108733015A (en) * | 2018-05-14 | 2018-11-02 | 山东交通学院 | A kind of automatic active control method of intelligence ice prevention and snow removing control system |
| CN108914869A (en) * | 2018-07-02 | 2018-11-30 | 湖北工业大学 | A kind of deicing or snow melting system and method based on road and bridge underground water |
| CN108978377B (en) * | 2018-07-05 | 2020-07-14 | 嘉兴市新丰特种纤维有限公司 | Snow-proof fast rain-removing high-speed slope |
| CN108978377A (en) * | 2018-07-05 | 2018-12-11 | 潘舒畅 | Anti-fall snow quickly removes rain high speed slope surface |
| CN109024151A (en) * | 2018-07-11 | 2018-12-18 | 安徽省徽腾智能交通科技有限公司 | A kind of Highway Maintenance method |
| CN109024151B (en) * | 2018-07-11 | 2020-12-01 | 安徽省徽腾智能交通科技有限公司 | Highway maintenance method |
| CN109859471A (en) * | 2019-02-27 | 2019-06-07 | 长安大学 | A kind of inlet and outlet changeover portion road surface running vehicle safety comprehensive early warning of freeway tunnel and feedback system and method |
| CN110565768A (en) * | 2019-09-03 | 2019-12-13 | 广东潮鑫建设工程有限公司 | Municipal drainage system |
| CN110644416A (en) * | 2019-10-15 | 2020-01-03 | 王光建 | Road cleaning and purifying system |
| CN112411451A (en) * | 2020-10-27 | 2021-02-26 | 长安大学 | Highway pavement accumulated water blowing and draining system and method |
| CN113005848A (en) * | 2021-03-23 | 2021-06-22 | 北京工业大学 | Road zebra crossing line surface anti-icing device utilizing solar energy |
| CN113958364A (en) * | 2021-09-27 | 2022-01-21 | 中铁二十二局集团有限公司 | Tunnel disaster early warning method |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170517 |
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| WW01 | Invention patent application withdrawn after publication |